Big Sean left an inappropriate comment on girlfriend Ariana Grande's Instagram, and it looks like her father wasn't too happy about it.

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On Tuesday, Big Sean took to Instagram where he shared a selfie in which he apparently thought he looked pretty good in.

His somewhat cocky caption seemed to get Grande's father a little worried as it read: "I give her that D... #Detroit."

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Her dad, Edward Butera, immediately saw the caption and left his own response to warn him to lower his ego a bit: "That D. better be Detroit Sean."

Grande's dad is clearly keeping tabs on the singer and her relationship with the artist, but maybe not close enough.

One month ago, Grande herself took a cute pic of the two and posted it to Instagram with the caption, "w my baby in the D #detroit #duh #NottheonlyDtho #what #gottagobye."

The two have been in a relationship for months, and according to HollywoodLife, Grande is writing about her lover for her next album.

"Ariana's been at her creative best working on her new record, and has written several songs based on her most recent experiences," a source said.

It sounds like it's getting serious between the two with what else the source had to say.

"One of those songs, that she's already recorded, is a love song dedicated to Big Sean. He's her first love, her best friend and someone she confides everything to. The song's lyrics touch on that, as well as how she feels so safe and happy with him and doesn't want that feeling to ever end."

Tags: Ariana Grande big sean